Mangling roller



Jan.23,1934. P. SCHEME i 1,944,373

` I MANGLING ROLLER Filed Nov. 1s, 1932 Inventar Patented Jen. 23, 1934 1,944,373

MANGLING ROLLER Paul Scheibe, Cologne-on-th'e-Bhine,

Y Germany Application Neyember 1s. 1932, serial No.V

643,300, and in Germany November 24, 1931 11 clem. (ci. es-s) This invention relates to a `mangling roller hav- The mangling eilect attained with the mangling ing a shell or covering consisting of yielding rollers dealt with in the preceding two paramembers arranged side by side. each of these graphs is insufficient because the pressure points members being pressed outwardly, for instance are by far too small so that the covering cloth 4 5 by means of a spring located below it; said roller is destroyed after a short time. If the yielding 60 is, besides, provided at its circumference with' shell is provided with, or consists of, plate springs, circumferential chambers or grooves formed by the elasticity ofthe various springs is diierent, spaced rings and containing said yielding memin consequence whereo! the elasticity of those bers which are laterally guided by said rings. springs which are subjected to a stronger strain l0 The hot mangling machines that have become is detrimentally affected. 65 known up to now have rollers with a hard sur- Furthermore, with those rollers, or their yieldface, these rollers being covered with atabric coning shell respectively, the elastic members, espesisting of nettle, asbestos, molton, or the like,land cially the springs, are not laterally guided and the object of this soft covering is to permit the they can, therefore, give way to all sides whereby mangling also of pieces of linen or thelike not only their manner of action, but also their 70 having, for instance, thick seams orrnonograms securityof service is rendered questionable. or fiat buttons forming protuberances, these pro- Finally, the extent of movement of the elastic jecting parts being pressed down into the covermembers of the shell of said known mangling ing while the pieces of linen etc. are being rollers is not bounded by abutment members. If

2D mangled. That is possible, however, only so long the protuberances of the pieces of linen worked 'l5 as the covering is new and elastic, but it bewith them are comparatively high, the elastic comes soon hard and unyielding by reason of members are too strongly bent and, perhaps, the continuous pressure to which it is subjected, pressed upon the rigid body or core o! the roller also under the action of the warm and moist so that they are likely to be damaged or even air, so that said projecting partsot the linen broken. 80 etc. are no more pressed down into the covering, My improved mangling roller is free from the but the pieces of linen etc. are damaged by above-mentioned drawbacks oi' the known them. mangling rollers and is illustrated diagrammati- Of late mangling machines have become known, cally and by way of example on the accompanythe rollers of which are more yieldable to the ing drawing on which Figure 1 is an axial section 85 vpressure caused by the seams etc. and remain through a mangling roller designed accordalso longer in proper operative state as regards ing to this invention. Figure 2 is a transverse` their greater yieldingness of the covering. This section through the roller, together with an endlatter consists of, or is provided with, plate view of the tray or trough in which the roller springs or equivalent members, for instance meis located. Figure 3 shows an end-view of, as 90 tallic brushes, which are covered with a layer cI well as a transverse section through, one of the cloth or the like that encompasses the springs etc. above-mentioned rings between which the elastic so tightly that the respective elastic members are members are located and by which they are latersubjected to a correspondingly strong tension ally guided. Figure 4 shows a front-view, a side- 4o which, in turn, keeps the covering 0r cloth tight view and a plan of one of the springs used in this 95 and gives it the certain so-to-say hardness as constructional form of the mangling roller. reouisite for the workto be done. Figure 5 shows a side-view of, a transverse section But the fact that the metallic brushes or the through (in the line A -B of the side-view), and plate springs etc. are depressed or compressed by a plan of one of certain plate-like members the cloth surrounding and covering them already located above said springs and being subjected to 100 prior to the mangling constitutes va drawback. the pressure of the same. Figure 6 is a trans- The covering is subjected to strong tensile strain verse section through a portion or thel hollow by the depressed or compressed springs or brushes roller body, the elastic shell (composed of said and this strain can be, and is often times, so kplates, dhd said springs), the cloth covering of much increased by the seams 0r other protuberthe same, and the tray Vor trough,'this ligure 105 ances, as the case may be, that the covering tears. being drawn to a greatly enlarged scale relatively Furthermore, those rollers lack a tangential couto Figs. 1-5. Figure 'l is a front-view of a porpling of the elastic shell formed by the yielding tion of the elastic shell, the scale being' the same members with the inner body or core oi' the 'as in Fig. 6. Figure 8 is a view similar to Fig. 6

roller. and shows a modification. Figure 9 'is a plan o! 110 the parts shown spective view of hereinafter.

On the drawing, a (Figs. 1, 2 and 6) denotes the hollow body or core of the roller which is provided with perforations h through which the damp may be sucked away from the moist linen. The body a is surrounded with a large lnumber of rings c (Figs. 6 and '1) in which are supported a big number` of axles d extending parallel to the axis of the roller. On these axles are supported springs b (Fig. 4) and plates e (Fig. 5) in staggered arrangement, as plates e which are laterally yguided by said rings c constitute so-to-say double-armed levers, one arm forming the plate proper and the other arm forming an abutment lug e' (Fig. 5) which bears upon the roller body, as shown in Fig. 6. The plates e are held lifted by the springs b, but can be lifted only so much as is permitted by said abutment lugs e.

g (Fig. 6) is the covering which consists of cloth or the like. The cloth is not subjected to the pressure of the springs, that is to say, it is not subjected to tensile strain. The cloth is just kept smooth, without folds in it. It covers the plates e, the length of which is such that'they overlap one another in the circumferential direction of the roller, as appears from Fig. 7. For this purpose the plates are slightly curved (Fig. 5) and the axles d are sufliciently iar remote from the roller body that the lugs e can be turned in the direction to the axles when the plates e are in Fig. 8, and Figure 10 is a pera detail more fully dealt with depressed. Each plate is subjected to the pressure of the spring located opposite its concave side, on the respective adjacent axle. It will be obvious that each spring can give way when the covering portion above it is subjected to a pressure exerted, for instance, by a seam or a moncgram or a fiat button etc. The pieces of linen to be mangled are led through between the roller and the trough which latter is hollow and heated. as known with mangling machines. While the pieces of linen pass through between the roller and the trough they are subjected to the mangling pressure, as known, as the pressure is exerted by the springs b` in that they are compelled to give pieces of linen present in the trough, the pieces of linen are pressed against the trough by said springs, any one of which is Y,able to give way if a seam or' other protuberance should arrive above it. There arises then in the respective portion of the covering cloth a certain cavity, as shown in Fig. 6, that cavity disappearing instantly when it has been moved past the end of the path in the trough.

As the upper surface of the plates e is perfectly smooth, there is only a very slight friction between them and the cloth which is, therefore, excellently preserved.

The elastic shell of the roller, as formed by the plates e and the springs d does not vibrate,

.in that the plates are rigid and donot show elasticity in tangential direction owing to theirconfiguration and arrangement, as described. There is also no rebounding, in that this is prevented by the abutment lugs e. The vsize of the plates e and their number is such that they present in their entirety a uniform and highly elastic, also uniformly elastic, surface which constitutes an excellent supporting surface for the cloth g.

If a particularly high protuberance, for instance a somewhat thick button, should iind access between. the mangling roller and.` the shown in Fig. '1. The

rings c when the member i way under the resistance of the trough, the elastic and yielding members b and e concerned will nevertheless not be damaged, in that'they will be protected by the adjacent rings c.

In thev modification shown in Figs. 8-10 there are no such lever-like members as e e but instead thereof members i (Fig. 10) resembling each an inverted U are provided, these members being inserted between the rings c (which are practically the same as in the first described constructional form) in the manner shown in Fig. 9. Instead axles 7 are provided which also extend transversely through said rings, or parallel to the axis of the roller respectively, and bear pairs cf helic al springs shaped and arranged in the manner shown in Figs. 8 and 9. Each pair of said springs holds one of said yielding members i in operative position and permits the respective member to give way, if necessary. One end (l') cf each spring bears upon the roller body, upon which it can slide, and the other end (Z2.) is bent around the appertaining axle j. The axles y' are provided with tubular spacing member lc for the rings c. The yielding members i can be moved inwardly counter to the pressure of the springs l, in the direction to the axles 7', but moving them inwardly too far is prevented by the rings c. Each leg of each of the inverted members i is provided with a slot i1 for thepassage of the spring ends Z2 and the top has lateral ledge-like projections il that contact with the adjacent two has been depressed into its lowermost position..y In Fig. 8 the two members i at the left-hand end of the figure are shown in their depressed state, that is to say, they are here depressed so much that their ledges i2 bear upon the adjacent rings c. The other memb ers i are in their normal position.

This constructional form is particularly suited to accommodate the operative surface of the mangling roller to the varying pressures arising While the pieces of linen are led through the machine. A particular advantage is, besides this that the supporting surface, as presented by the members i, is the largest possible which is very useful for the covering cloth i. e. for the length of its lifetime. Other advantages of this constructional form over that shown in Figs. 1-'7 reside therein thatthe entire construction is considerably simpler, and the roller can be turned in both directions.

Finally, I wish it to be understood that my invention is not limited to all the details shown in the drawing merely by way of example. Many departures in the details -are possible without constituting also a departure of the invention.

I claim:

of the axles d of Figs. 6 and 'l l. A mangling roller, comprising, inv combina A vencompassing said body on the entire length of the same; lindividually depressible members having a flat upper surface and being arranged between said rings and laterally guided by them; springs located below said depressible members and holding them normally in proper operative located position; and a covering around all said depressible members. e 3. A mangling roller, comprising in combination with thebody of the roller, a yielding shelly composed of circumferential rows of depressible members having each a flat surface.; axles lo-l cated between said body and said shell and extending parallel tothe axis of the roller and supporting said depressible members; springs arranged below the depressible members and holdl l5 tion with the body of the roller, a yielding shell composed of circumferential rows of depressible members having each a flat surface; axles located between said body and said shell and extending parallel to the axis of the roller and supporting said depressible members; means supporting said axles and being so designed as to be adapted to guide the depressible members at their sides; springs arranged below the depressible members and holding them normally in working position; and a covering surrounding all the said depressible members.

5. A mangling roller, comprising, in combination with the body of the roller, spaced rings encompassing said body along theentire length of the same; axles supported by said rrings and being arranged around the entire circumference of the said body; individually depressible members located above said axles and being movable relatively to the same; springs engaging with one end said depressible members and bearing with the other end upon the said body so as to hold the depressible members in proper operative.

position; and a covering on all said depressible members.

6. A mangling roller, comprising in combination with the body of the roller, axles extending outside said body parallel to the axis of the roller; depressible members supported on said axles and forming each a double-armed lever, one arm of which bears upon the said roller and the other arm of which is plate-shaped and directed counter to the first-mentioned arm; springs also supported on the said axles and tending continuously` to move said plate-shaped lever arms, outwardly; and a covering enclosing all these leverarms.

7. A mangling roller, comprising, in combina-` tion with the body of the roller, axles surrounding said body parallel to the axis thereof; means supporting said axles on said body; double-armed levers supported on said axles and forming at one end a smooth plate and at the other end an abutment lug, the arrangement being such that the lugs bear on the said body when said plates are in proper operative position; helical springs also arranged upon the said axles below the said plates and holding them in operative depressible position, and a covering surrounding the entire yielding shell formed by the said depressible lever plates, substantially as set forth.

8. A mangling roller, comprising, in combination with the body of the same, spaced rings aixed to the body along the entire length of the same; depressible members located between said rings and being guided by them and forming each an inverted U, the legs ofthe consecutive Us following one another around the circumference of the roller body; axles extending transversely throughv said rings and between the legs of the Us; pairs of helical springs having each one of its ends bearing upon'one of the depressible Us and encompassing with its other end an adjacent axle so as to hold the appertaining depressible member in proper operative position; and an envelope around all said depressible members, substantially as set forth.

9. A mangling roller, comprising in combination with the body of the roller, yieldably supported members which are U-shaped in section and surround without gaps the entire circum ferential surface of said body; equally spaced rings distributed over the entire length oi the body and being firmly connected therewith and guiding said members laterally and limiting the inward movement of the same; springs located 100 in said yielding members between the legs of the same and pressi-ng the said members upwardly so as to hold them in working position; and a covering surrounding all the said depressible members.

10. A mangling roller, comprising, in combination with the body of the roller, spaced rings attached to the body on the entire length of the same; depressible member representingv each an inverted U having a slot in each leg and having f projecting abutment ledges at its top, the arrange- 110 ment being such that said ledges can bear upon said rings; pairs of helical springs, one pair in each of. said depressible members between the legs of the same, the neighbouring ends of the springs forming one pair extending through one of said `section and has its legs directed towards the axis of -the roller;I equally spaced rings surrounding said-body and holding said depressible members between them, guiding them laterally and limiting their stroke in inward direction; axles located between the working faces of the depressible members and the roller body, moderately remote from this latter; springs located between the legs of the U-shaped depressible members and pressing these members upwardly so as to hold them in. working position; and a covering surrounding all the said depressible members.

PAUL SCHEIBE. 

